We don't like to directly compare our products with other manufacturers. However, we use many of the same advanced optical techniques you'll find in lenses from other high-end manufacturers. All of our lenses are designed and manufactured by Revant Optics to fit the frames they were meant to replace, but keep in mind that none of the original logos or branding will be present. Additionally, different companies all have their own proprietary techniques for developing lenses (e.g. Prizm, Chromance, Spy Optics’ Happy lenses). Our lenses are not exactly the same as the originals, but we use similar techniques that are our own. We offer lenses that are optically crisp and durable at a fraction of the price. Not to mention, we've got you covered with our 1-year manufacturer's warranty and 60-day no-hassle return policy. Please contact support@revantoptics.com so we can help!